This TTL heads or tails circuit was found in the July 1973 Radio Electronics magazine. The LEDs are types of the time. Note the symbolic representation of this component.
This project shows how to use an SCR in a starter circuit for a common fluorescent lamp. The SCR...
This circuit was found in a 1967 Motorola manual. Its purpose is to provide a very accurate...
This interesting application of a stepper motor as an encoder serves to test its application...